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page count

The number of pages in a book is meant to include all content except for advertisements and preview chapters for other books. Included end material may include acknowledgments, afterwords, appendices, author biographies, glossaries, indexes, notes, and suggested discussion questions.

Introductory material paged using roman numerals is not included in the total page count.

Most e-book formats do not have a fixed number of pages since the pagination adjusts for screen size. For PDF specific editions, or any other fixed page e-books, the normal paging rules may be used.

For audio books, number of hours can be used in lieu of number of pages, when that information is known.